| File name: | csc.exe |
| Full analysis: | https://app.any.run/tasks/6a9cc64d-a8a4-4029-9a0f-e650d9e3c03b |
| Verdict: | Malicious activity |
| Threats: | Remcos is a commercially distributed remote administration and surveillance tool that has been widely observed in unauthorized deployments, where threat actors use it to perform remote actions on compromised machines. It is actively maintained by its vendor, with new versions and feature updates released on a frequent, near-monthly basis. |
| Analysis date: | February 22, 2024, 13:52:10 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | B18B072F27443BDAF4FBCAE8630F5F4C |
| SHA1: | EC59CE76C2F2F2E9BBF2AE9D3525F729154EF8F9 |
| SHA256: | 643D3F7F393F3DD671EEF00254BC749B5FD1A7AA10035652C9EE4390DE8DDB46 |
| SSDEEP: | 12288:qQApZvd+BPTCitTJGF5ibz1lcmmc4yZZVHpWVVVVVVVVVVVVVVVVVir/:41qTJGFqz1zlZZZp |
MALICIOUS
Drops the executable file immediately after the start
- csc.exe (PID: 3668)
REMCOS has been detected (YARA)
- csc.exe (PID: 3668)
SUSPICIOUS
No suspicious indicators.INFO
Checks supported languages
- csc.exe (PID: 3668)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
Remcos
(PID) Process(3668) csc.exe
C2 (1)volver.con-ip.com:7770
BotnetZAFIRO
Options
Connect_interval1
Install_flagFalse
Install_HKCU\RunTrue
Install_HKLM\RunTrue
Install_HKLM\Explorer\Run1
Install_HKLM\Winlogon\Shell100000
Setup_path%LOCALAPPDATA%
Copy_fileremcos.exe
Startup_valueFalse
Hide_fileFalse
Mutex_nameRmc-ANTXZI
Keylog_flag1
Keylog_path%LOCALAPPDATA%
Keylog_filelogs.dat
Keylog_cryptFalse
Hide_keylogFalse
Screenshot_flagFalse
Screenshot_time5
Take_ScreenshotFalse
Screenshot_path%APPDATA%
Screenshot_fileScreenshots
Screenshot_cryptFalse
Mouse_optionFalse
Delete_fileFalse
Audio_record_time5
Audio_path%ProgramFiles%
Audio_dirMicRecords
Connect_delay0
Copy_dirRemcos
Keylog_dirremcos
TRiD
| .exe | | | Win64 Executable (generic) (64.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (15.4) |
| .exe | | | Win32 Executable (generic) (10.5) |
| .exe | | | Generic Win/DOS Executable (4.6) |
| .exe | | | DOS Executable Generic (4.6) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2023:11:26 09:39:33+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 14 |
| CodeSize: | 356864 |
| InitializedDataSize: | 136704 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x349ef |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
Total processes
37
Monitored processes
1
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3668 | "C:\Users\admin\AppData\Local\Temp\csc.exe" | C:\Users\admin\AppData\Local\Temp\csc.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 3221225477 Modules
Remcos(PID) Process(3668) csc.exe C2 (1)volver.con-ip.com:7770 BotnetZAFIRO Options Connect_interval1 Install_flagFalse Install_HKCU\RunTrue Install_HKLM\RunTrue Install_HKLM\Explorer\Run1 Install_HKLM\Winlogon\Shell100000 Setup_path%LOCALAPPDATA% Copy_fileremcos.exe Startup_valueFalse Hide_fileFalse Mutex_nameRmc-ANTXZI Keylog_flag1 Keylog_path%LOCALAPPDATA% Keylog_filelogs.dat Keylog_cryptFalse Hide_keylogFalse Screenshot_flagFalse Screenshot_time5 Take_ScreenshotFalse Screenshot_path%APPDATA% Screenshot_fileScreenshots Screenshot_cryptFalse Mouse_optionFalse Delete_fileFalse Audio_record_time5 Audio_path%ProgramFiles% Audio_dirMicRecords Connect_delay0 Copy_dirRemcos Keylog_dirremcos | |||||||||||||||
Total events
10
Read events
10
Write events
0
Delete events
0
Modification events
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
5
DNS requests
1
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1080 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
3864 | WerFault.exe | 104.208.16.93:443 | watson.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
watson.microsoft.com |
| whitelisted |